Hello. Can i use DHT22 instead of DHT11 ? I can't find dht11 in my country, only dht22. Also DHT22 seems to be more accurate. I try to compare datasheets of each but on DHT22 is in chinese. I'm lost here. Thank you.

sshahryiar

Joined: 05 May 2010Posts: 92Location: Dhaka, Bangladesh

DHT22 instead of DHT11

Posted: Sun Aug 23, 2015 8:37 pm

Yeah you can but you'll need to change the values in the delay functions according to DHT22's datasheet.... Study the delays used in this library and compare them with the timings given in DHT11's datasheet.... You can then decide what will be the delays for DHT22...._________________https://www.facebook.com/MicroArena

SShahryiar

gianhenrique

Joined: 20 Dec 2010Posts: 8

Alarm

Posted: Wed Sep 30, 2015 3:28 am

Hello guys,

I would like to know, if I want to make a Alarm with some temperature or humidity... How variable can I read for compare with some value, then make a decision?

Have you some examples?

Thanks

exceps

Joined: 26 Jan 2016Posts: 1Location: VENEZUELA

Re: DHT11 Relative Humidity and Temperature Sensor

Posted: Tue Jan 26, 2016 12:00 pm

I used this library but it does not work for me. I was simulating in Proteus
and it tells me it does not find the sensor (sensor not found!) Can you
help me please !!!